var topWin = window.dialogArguments || opener || parent || top;

function fileDialogStart() {
    jQuery("#media-upload-error").empty();
}

// progress and success handlers for media multi uploads
function fileQueued(fileObj) {
    // Get rid of unused form
    jQuery('.media-blank').remove();
    // Collapse a single item
    if (jQuery('form.type-form #media-items').children().length == 1 && jQuery('.hidden', '#media-items').length > 0) {
        jQuery('.describe-toggle-on').show();
        jQuery('.describe-toggle-off').hide();
        jQuery('.slidetoggle').slideUp(200).siblings().removeClass('hidden');
    }
    // Create a progress bar containing the filename
    jQuery('<div class="media-item">')
        .attr('id', 'media-item-' + fileObj.id)
        .addClass('child-of-' + post_id)
        .append('<div class="progress"><div class="bar"></div></div>',
        jQuery('<div class="filename original"><span class="percent"></span>').text(' ' + fileObj.name))
        .appendTo(jQuery('#media-items'));
    // Display the progress div
    jQuery('.progress', '#media-item-' + fileObj.id).show();

    // Disable submit and enable cancel
    jQuery('#insert-gallery').prop('disabled', true);
    jQuery('#cancel-upload').prop('disabled', false);
}

function uploadStart(fileObj) {
    try {
        if (typeof topWin.tb_remove != 'undefined')
            topWin.jQuery('#TB_overlay').unbind('click', topWin.tb_remove);
    } catch (e) {
    }

    return true;
}

function uploadProgress(fileObj, bytesDone, bytesTotal) {
    // Lengthen the progress bar
    var w = jQuery('#media-items').width() - 2, item = jQuery('#media-item-' + fileObj.id);
    jQuery('.bar', item).width(w * bytesDone / bytesTotal);
    jQuery('.percent', item).html(Math.ceil(bytesDone / bytesTotal * 100) + '%');

    if (bytesDone == bytesTotal)
        jQuery('.bar', item).html('<strong class="crunching">' + swfuploadL10n.crunching + '</strong>');
}

function prepareMediaItem(fileObj, serverData) {
    var f = ( typeof shortform == 'undefined' ) ? 1 : 2, item = jQuery('#media-item-' + fileObj.id);
    // Move the progress bar to 100%
    jQuery('.bar', item).remove();
    jQuery('.progress', item).hide();

    try {
        if (typeof topWin.tb_remove != 'undefined')
            topWin.jQuery('#TB_overlay').click(topWin.tb_remove);
    } catch (e) {
    }

    // Old style: Append the HTML returned by the server -- thumbnail and form inputs
    if (isNaN(serverData) || !serverData) {
        item.append(serverData);
        prepareMediaItemInit(fileObj);
    }
    // New style: server data is just the attachment ID, fetch the thumbnail and form html from the server
    else {
        item.load('async-upload.php', {attachment_id: serverData, fetch: f}, function () {
            prepareMediaItemInit(fileObj);
            updateMediaForm()
        });
    }
}

function prepareMediaItemInit(fileObj) {
    var item = jQuery('#media-item-' + fileObj.id);
    // Clone the thumbnail as a "pinkynail" -- a tiny image to the left of the filename
    jQuery('.thumbnail', item).clone().attr('class', 'pinkynail toggle').prependTo(item);

    // Replace the original filename with the new (unique) one assigned during upload
    jQuery('.filename.original', item).replaceWith(jQuery('.filename.new', item));

    // Also bind toggle to the links
    jQuery('a.toggle', item).click(function () {
        jQuery(this).siblings('.slidetoggle').slideToggle(350, function () {
            var w = jQuery(window).height(), t = jQuery(this).offset().top, h = jQuery(this).height(), b;

            if (w && t && h) {
                b = t + h;

                if (b > w && (h + 48) < w)
                    window.scrollBy(0, b - w + 13);
                else if (b > w)
                    window.scrollTo(0, t - 36);
            }
        });
        jQuery(this).siblings('.toggle').andSelf().toggle();
        jQuery(this).siblings('a.toggle').focus();
        return false;
    });

    // Bind AJAX to the new Delete button
    jQuery('a.delete', item).click(function () {
        // Tell the server to delete it. TODO: handle exceptions
        jQuery.ajax({
            url: ajaxurl,
            type: 'post',
            success: deleteSuccess,
            error: deleteError,
            id: fileObj.id,
            data: {
                id: this.id.replace(/[^0-9]/g, ''),
                action: 'trash-post',
                _ajax_nonce: this.href.replace(/^.*wpnonce=/, '')
            }
        });
        return false;
    });

    // Bind AJAX to the new Undo button
    jQuery('a.undo', item).click(function () {
        // Tell the server to untrash it. TODO: handle exceptions
        jQuery.ajax({
            url: ajaxurl,
            type: 'post',
            id: fileObj.id,
            data: {
                id: this.id.replace(/[^0-9]/g, ''),
                action: 'untrash-post',
                _ajax_nonce: this.href.replace(/^.*wpnonce=/, '')
            },
            success: function (data, textStatus) {
                var item = jQuery('#media-item-' + fileObj.id);

                if (type = jQuery('#type-of-' + fileObj.id).val())
                    jQuery('#' + type + '-counter').text(jQuery('#' + type + '-counter').text() - 0 + 1);
                if (item.hasClass('child-of-' + post_id))
                    jQuery('#attachments-count').text(jQuery('#attachments-count').text() - 0 + 1);

                jQuery('.filename .trashnotice', item).remove();
                jQuery('.filename .title', item).css('font-weight', 'normal');
                jQuery('a.undo', item).addClass('hidden');
                jQuery('a.describe-toggle-on, .menu_order_input', item).show();
                item.css({backgroundColor: '#ceb'}).animate({backgroundColor: '#fff'}, { queue: false, duration: 500, complete: function () {
                    jQuery(this).css({backgroundColor: ''});
                } }).removeClass('undo');
            }
        });
        return false;
    });

    // Open this item if it says to start open (e.g. to display an error)
    jQuery('#media-item-' + fileObj.id + '.startopen').removeClass('startopen').slideToggle(500).siblings('.toggle').toggle();
}

function itemAjaxError(id, html) {
    var item = jQuery('#media-item-' + id);
    var filename = jQuery('.filename', item).text();

    item.html('<div class="error-div">'
        + '<a class="dismiss" href="#">' + swfuploadL10n.dismiss + '</a>'
        + '<strong>' + swfuploadL10n.error_uploading.replace('%s', filename) + '</strong><br />'
        + html
        + '</div>');
    item.find('a.dismiss').click(function () {
        jQuery(this).parents('.media-item').slideUp(200, function () {
            jQuery(this).remove();
        })
    });
}

function deleteSuccess(data, textStatus) {
    if (data == '-1')
        return itemAjaxError(this.id, 'You do not have permission. Has your session expired?');
    if (data == '0')
        return itemAjaxError(this.id, 'Could not be deleted. Has it been deleted already?');

    var id = this.id, item = jQuery('#media-item-' + id);

    // Decrement the counters.
    if (type = jQuery('#type-of-' + id).val())
        jQuery('#' + type + '-counter').text(jQuery('#' + type + '-counter').text() - 1);
    if (item.hasClass('child-of-' + post_id))
        jQuery('#attachments-count').text(jQuery('#attachments-count').text() - 1);

    if (jQuery('form.type-form #media-items').children().length == 1 && jQuery('.hidden', '#media-items').length > 0) {
        jQuery('.toggle').toggle();
        jQuery('.slidetoggle').slideUp(200).siblings().removeClass('hidden');
    }

    // Vanish it.
    jQuery('.toggle', item).toggle();
    jQuery('.slidetoggle', item).slideUp(200).siblings().removeClass('hidden');
    item.css({backgroundColor: '#faa'}).animate({backgroundColor: '#f4f4f4'}, {queue: false, duration: 500}).addClass('undo');

    jQuery('.filename:empty', item).remove();
    jQuery('.filename .title', item).css('font-weight', 'bold');
    jQuery('.filename', item).append('<span class="trashnotice"> ' + swfuploadL10n.deleted + ' </span>').siblings('a.toggle').hide();
    jQuery('.filename', item).append(jQuery('a.undo', item).removeClass('hidden'));
    jQuery('.menu_order_input', item).hide();

    return;
}

function deleteError(X, textStatus, errorThrown) {
    // TODO
}

function updateMediaForm() {
    var one = jQuery('form.type-form #media-items').children(), items = jQuery('#media-items').children();

    // Just one file, no need for collapsible part
    if (one.length == 1) {
        jQuery('.slidetoggle', one).slideDown(500).siblings().addClass('hidden').filter('.toggle').toggle();
    }

    // Only show Save buttons when there is at least one file.
    if (items.not('.media-blank').length > 0)
        jQuery('.savebutton').show();
    else
        jQuery('.savebutton').hide();

    // Only show Gallery buttons when there are at least two files.
    if (items.length > 1) {
        jQuery('.insert-gallery').show();
    } else {
        jQuery('.insert-gallery').hide();
    }
}

function uploadSuccess(fileObj, serverData) {
    // if async-upload returned an error message, place it in the media item div and return
    if (serverData.match('media-upload-error')) {
        jQuery('#media-item-' + fileObj.id).html(serverData);
        return;
    }

    prepareMediaItem(fileObj, serverData);
    updateMediaForm();

    // Increment the counter.
    if (jQuery('#media-item-' + fileObj.id).hasClass('child-of-' + post_id))
        jQuery('#attachments-count').text(1 * jQuery('#attachments-count').text() + 1);
}

function uploadComplete(fileObj) {
    // If no more uploads queued, enable the submit button
    if (swfu.getStats().files_queued == 0) {
        jQuery('#cancel-upload').prop('disabled', true);
        jQuery('#insert-gallery').prop('disabled', false);
    }
}


// wp-specific error handlers

// generic message
function wpQueueError(message) {
    jQuery('#media-upload-error').show().text(message);
}

// file-specific message
function wpFileError(fileObj, message) {
    var item = jQuery('#media-item-' + fileObj.id);
    var filename = jQuery('.filename', item).text();

    item.html('<div class="error-div">'
        + '<a class="dismiss" href="#">' + swfuploadL10n.dismiss + '</a>'
        + '<strong>' + swfuploadL10n.error_uploading.replace('%s', filename) + '</strong><br />'
        + message
        + '</div>');
    item.find('a.dismiss').click(function () {
        jQuery(this).parents('.media-item').slideUp(200, function () {
            jQuery(this).remove();
        })
    });
}

function fileQueueError(fileObj, error_code, message) {
    // Handle this error separately because we don't want to create a FileProgress element for it.
    if (error_code == SWFUpload.QUEUE_ERROR.QUEUE_LIMIT_EXCEEDED) {
        wpQueueError(swfuploadL10n.queue_limit_exceeded);
    }
    else if (error_code == SWFUpload.QUEUE_ERROR.FILE_EXCEEDS_SIZE_LIMIT) {
        fileQueued(fileObj);
        wpFileError(fileObj, swfuploadL10n.file_exceeds_size_limit);
    }
    else if (error_code == SWFUpload.QUEUE_ERROR.ZERO_BYTE_FILE) {
        fileQueued(fileObj);
        wpFileError(fileObj, swfuploadL10n.zero_byte_file);
    }
    else if (error_code == SWFUpload.QUEUE_ERROR.INVALID_FILETYPE) {
        fileQueued(fileObj);
        wpFileError(fileObj, swfuploadL10n.invalid_filetype);
    }
    else {
        wpQueueError(swfuploadL10n.default_error);
    }
}

function fileDialogComplete(num_files_queued) {
    try {
        if (num_files_queued > 0) {
            this.startUpload();
        }
    } catch (ex) {
        this.debug(ex);
    }
}

function switchUploader(s) {
    var f = document.getElementById(swfu.customSettings.swfupload_element_id), h = document.getElementById(swfu.customSettings.degraded_element_id);
    if (s) {
        f.style.display = 'block';
        h.style.display = 'none';
    } else {
        f.style.display = 'none';
        h.style.display = 'block';
    }
}

function swfuploadPreLoad() {
    if (!uploaderMode) {
        switchUploader(1);
    } else {
        switchUploader(0);
    }
}

function swfuploadLoadFailed() {
    switchUploader(0);
    jQuery('.upload-html-bypass').hide();
}

function uploadError(fileObj, errorCode, message) {

    switch (errorCode) {
        case SWFUpload.UPLOAD_ERROR.MISSING_UPLOAD_URL:
            wpFileError(fileObj, swfuploadL10n.missing_upload_url);
            break;
        case SWFUpload.UPLOAD_ERROR.UPLOAD_LIMIT_EXCEEDED:
            wpFileError(fileObj, swfuploadL10n.upload_limit_exceeded);
            break;
        case SWFUpload.UPLOAD_ERROR.HTTP_ERROR:
            wpQueueError(swfuploadL10n.http_error);
            break;
        case SWFUpload.UPLOAD_ERROR.UPLOAD_FAILED:
            wpQueueError(swfuploadL10n.upload_failed);
            break;
        case SWFUpload.UPLOAD_ERROR.IO_ERROR:
            wpQueueError(swfuploadL10n.io_error);
            break;
        case SWFUpload.UPLOAD_ERROR.SECURITY_ERROR:
            wpQueueError(swfuploadL10n.security_error);
            break;
        case SWFUpload.UPLOAD_ERROR.UPLOAD_STOPPED:
        case SWFUpload.UPLOAD_ERROR.FILE_CANCELLED:
            jQuery('#media-item-' + fileObj.id).remove();
            break;
        default:
            wpFileError(fileObj, swfuploadL10n.default_error);
    }
}

function cancelUpload() {
    swfu.cancelQueue();
}

// remember the last used image size, alignment and url
jQuery(document).ready(function ($) {
    $('input[type="radio"]', '#media-items').live('click', function () {
        var tr = $(this).closest('tr');

        if ($(tr).hasClass('align'))
            setUserSetting('align', $(this).val());
        else if ($(tr).hasClass('image-size'))
            setUserSetting('imgsize', $(this).val());
    });

    $('button.button', '#media-items').live('click', function () {
        var c = this.className || '';
        c = c.match(/url([^ '"]+)/);
        if (c && c[1]) {
            setUserSetting('urlbutton', c[1]);
            $(this).siblings('.urlfield').val($(this).attr('title'));
        }
    });
});
